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Why are babies given a vitamin K injection?
Vitamin K Deficiency Bleeding (VKDB), a clotting disorder, causes spontaneous, uncontrolled bleeding which can cause death or permanent brain damage in newborns. Injecting vitamin K prevents VKDB in almost all babies.
What are the chances of my baby getting VKDB?
Very slim. The majority of babies will do fine without it. However, it is impossible to predict which healthy baby will later be stricken with VKDB, and this is the basis for injecting all babies. There are several different estimates of the risk of the healthy, breast fed infant developing VKDB ranging from one in 5,000 to one in 25,000. In babies that develop VKDB, the overall death rate in affected babies is 14%-19%, and 21%-40% of the survivors have long-term neurological handicaps. Intramuscular administration (injection) of vitamin K does not provide complete protection from VKDB. The incidence rate of VKDB among babies given vitamin K by injection after birth is approximately 1 in 400,000 infants.
What are the risks of getting the injection?
Potential risks of vitamin K injection are jaundice, flushing, rash, or a mild reaction at the injection site. Because the skin is broken when an injection is given, infection is possible, but exceedingly rare. Also, because a foreign substance is being injected, there is the risk of anaphylactic shock, a profound allergic reaction that can cause death. This is very rare. Other risks are hypothetical and require some background information:
The level of vitamin K in newborns is much lower than that of children and adults, and it usually decreases further after birth. In fact, all mammals are born with lower levels than their mothers. In addition, breastmilk contains only a small amount of vitamin K. The healthy breastfed newborn who does not receive vitamin K supplementation has low vitamin K levels for the first few weeks to months of life. Despite the fact that all this is characteristic of the normal newborn period it is still referred to as a "deficiency." Babies have low levels of vitamin K relative to adult levels. Babies also have large heads relative to adult head size, but this is not considered bad. It is considered good, because the human brain needs to be large at birth. It is not known why babies are born with low vitamin K levels. This has led many researchers, midwives, and parents to believe that there is a good reason for lower vitamin K levels in newborns. Some researchers suggest that a low vitamin K level is protective against tumor formation and cancer, but the evidence to date is inconclusive. It is unknown what risk, if any, there is in exposing the newborn to an unnaturally high concentration of vitamin K. Therefore, by administering vitamin K to normal infants we may be actually causing other problems we don’t yet understand.
Some clients have expressed concern about the preservative used in the vitamin K injection. We are convinced that the preservative used is safe, but if you'd like to read more about this issue, see this very informative (and balanced) article. If you would like us to use preservative-free vitamin K for your baby, we can do so at an additional cost.
Are there more natural ways to prevent VKDB?
Not that we are currently aware of. During pregnancy, very little vitamin K crosses the placenta. Even if you take huge quantities of a supplement, vitamin K will only be found in small quantities in breastmilk. Likewise, high vitamin K foods and herbs taken at 670% of the RDA make no difference. Adults produce vitamin K in the large intestine, but the vitamin K produced in the newborn’s intestine does not appear to be usable by the baby until he or she is 4-6 months old, and does not prevent VKDB.
What about oral vitamin K?
Studies have found that in order for oral vitamin K to be as effective as injectable vitamin K, babies must receive 2 mg orally at birth, and 1 mg orally each week for the first three months. A single dose of oral vitamin K at birth is not effective, and 3 separate oral doses of vitamin K is not effective. A disadvantage of using oral vitamin K is that some babies may not absorb it into their systems well. Many babies spit up the oral vitamin K, which makes it impossible to properly dose the baby. Also, it may be difficult to convince a pediatrician to prescribe it for you because it is not commonly requested by parents in this area, and the pediatrician may not be familiar with the effectiveness or the dosage. For these reasons, we do not recommend oral vitamin K.
What are my options?
1. Give the baby an injection of vitamin K soon after birth.
We will ask you to sign an authorization and your midwife will give your baby the injection within 2-3 hours of birth. We use the preparation called Phytonadione because the incidence of jaundice is lower than with other kinds. The standard dosage is 0.5-1 milligram.
2. Wait and see if a hemorrhage develops, and then treat it with administration of vitamin K.
We will ask you to sign a waiver and we will not inject your baby. Get care for your baby immediately if any symptoms develop. Remind your baby’s health care provider that the baby was not given vitamin K. Because VKDB is so rare, many care providers do not recognize it. If a baby is treated with a vitamin K injection immediately damage may be avoided. However, it may be too late to completely reverse the condition. In addition, some babies who develop VKDB will have no symptoms until brain damage has occurred. If you choose this option, be aware of the signs and symptoms of VKDB. Some of the most common signs are: